Commercial credit, debit, and prepaid cards from the largest issuers of Visa and Mastercard products are ranked by purchase volume generated in 2017 on pages 9, 10, and 11. Products include purchasing, corporate travel and entertainment (T&E), fleet, small business credit, small business debit, and prepaid (government benefits, incentives, payroll, rewards, etc.). JPMorgan Chase remained first when measuring purchase volume from corporate T&E, purchasing, fleet, and small business credit cards combined, with $115.52 billion, up 0.4%. Bank of America continued to rank second with gro...